Great North American Lakes. 87 
for a place among your data: The slight information con- 
veyed in the conversation to which you refer, and in the nar- 
rative in your possession, was furnished by memory. At the 
dinate cicumstances presented themselves ; the one of them, 
the wind, the action of which might have forced in or out 
poured forth at one period was greater than at another, the 
volume itself accounted for the occasional elevation. ‘If the 
he 
apparent increase of its bulk, still the impulse given to the 
current, in the centre, by the increase of force from ve, 
